The annual rainfall at a place is 40 cm. The weight of water is 1 metric tonne per cubic meter. What is the volume of rainfall in cubic meter per hectare?
A.40
B.400
C.4000✓ Correct
D.40000
Explanation
One hectare = 10,000 square metres. Annual rainfall = 40 cm = 0.4 m. Volume of rainfall per hectare = area × depth = 10,000 × 0.4 = 4000 cubic metres.
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